Restoring OEM Stitch Length on Singer 29K70

[mikesc]

Just a note ..Snakeoil knows this, but for anyone else thinking of this way of getting powerful magnets..don't play with magnetrons if the machine is connected to the mains supply..even if you think the microwave is dead..and the magnets in hard drives can shatter or split when you are getting them off the HD internals..they can be very stubborn, the shards are sharp..you do not want one in your eye or finger etc...Also if you approach two very powerful magnets to each other.or one very powerful magnet to most iron or steel..they can "snap" to each other or the item so fast and hard that they can trap whatever is in the way ( finger etc ) ..or snap to each other so fast that they will break and shard.They are fun..and useful, but treat them with respect, and do not let your kids play with them.
I have old HD magnets all over my sewing machines..holding on tweezers, snips , those little leather clamps that look like clothes pegs, paper clips etc, and acting as sewing guides.

[Snakeoil]

Yes, all good points, Mike. Regarding m'waves, my SOP is to short out or ground any terminals with a piece of insulated wire before sticking my hands in there. There are some big capacitors in those ovens and if they are charged and you become the short circuit, it can be nasty.

[mikesc]

True :) ..The capacitors can hold a charge for a long time even after the units are disconnected..as can many capacitors..such as those used to run things ( such as industrial sewing machines ) which are originally set up as tri-phase..as single ( mono phase ) by providing a "fake" phase.

Electricity can get you when you least expect it.

I just spent 3 days tracking down a "bang" that left us with no lights and power to only half the sockets in the kitchen and no lights in the bathroom..turns out the "qualified" electrician that did the work for the previous owner of this house..had run two sets of insulated cables ( tri phase cables..4 x 2.5mm wires in each ) around the kitchen wall at just above floor level..then he'd plastered over them..to hide them..But not before drilling a hole through the wall to outside to pass an earth lead from the main fuse box to ground via an earth spike ( which is hidden somewhere under the metal framed veranda that they added )..In drilling the hole..he pierced one of the cables..exposing the wires..and with the storms we have had..( no damp proof course* so the ground got very wet, the wet rose in the walls ) the plaster got wet..and BANG!! ..last Tuesday night..Having found cables that vanished into the wall , I dug out the wall - destroying many built in kitchen cupboards that were masking the wall in the process ) for 10 metres or so , until I found the blackened "BANG!" point..The other cable followed the same route..and he'd just cut it off with ( I presume ) some side snips..But it was still connected to the main fuse board..The cable end was "fizzing" ..The kitchen and bathroom walls were live .. :)

Now they are not.. :)

But I'm going to have to re-do the kitchen and bathroom before they were scheduled to be done.

French electrics..on old properties..there were, and are no, controls as to what the system is like after the consumer meter point..

*Won't be the first time I've had to add one to an old building..awkward but possible..

Edited February 21, 2020 by mikesc

[Snakeoil]

Yikes!!!